Blame SOURCES/0404-95fcoe-Store-current-configuration-in-dracut-cmdline.patch

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From f501c955e86eb3043ab5e3c5f2648ed4c8bb58a3 Mon Sep 17 00:00:00 2001
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From: Hannes Reinecke <hare@suse.de>
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Date: Thu, 11 Dec 2014 15:46:22 +0100
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Subject: [PATCH] 95fcoe: Store current configuration in dracut cmdline
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When running with --hostonly-cmdline we should be storing
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the current configuration in /etc/cmdline.d so that dracut
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will be configure the system automatically.
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References: bnc#877288
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Signed-off-by: Hannes Reinecke <hare@suse.de>
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Signed-off-by: Thomas Renninger <trenn@suse.de>
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(cherry picked from commit 8b257fcc86f9a470613c1a5719641144a688acf7)
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---
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 modules.d/95fcoe/module-setup.sh | 45 ++++++++++++++++++++++++++++++++++++++++
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 1 file changed, 45 insertions(+)
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diff --git a/modules.d/95fcoe/module-setup.sh b/modules.d/95fcoe/module-setup.sh
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index c000b3be..af2798dc 100755
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--- a/modules.d/95fcoe/module-setup.sh
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+++ b/modules.d/95fcoe/module-setup.sh
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@@ -13,6 +13,7 @@ check() {
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     }
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     require_binaries dcbtool fipvlan lldpad ip readlink fcoemon fcoeadm || return 1
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+
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     return 0
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 }
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@@ -25,6 +26,46 @@ installkernel() {
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     instmods fcoe 8021q edd
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 }
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+get_vlan_parent() {
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+    local link=$1
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+
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+    [ -d $link ] || return
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+    read iflink < $link/iflink
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+    for if in /sys/class/net/* ; do
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+	read idx < $if/ifindex
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+	if [ $idx -eq $iflink ] ; then
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+	    echo ${if##*/}
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+	fi
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+    done
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+}
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+
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+# called by dracut
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+cmdline() {
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+
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+    for c in /sys/bus/fcoe/devices/ctlr_* ; do
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+        [ -L $c ] || continue
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+        read enabled < $c/enabled
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+        [ $enabled -eq 0 ] && continue
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+        d=$(cd -P $c; echo $PWD)
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+        i=${d%/*}
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+        read mac < ${i}/address
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+        s=$(dcbtool gc ${i##*/} dcb | sed -n 's/^DCB State:\t*\(.*\)/\1/p')
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+        if [ -z "$s" ] ; then
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+	    p=$(get_vlan_parent ${i})
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+	    if [ "$p" ] ; then
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+	        s=$(dcbtool gc ${p} dcb | sed -n 's/^DCB State:\t*\(.*\)/\1/p')
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+	    fi
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+        fi
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+        if [ "$s" = "on" ] ; then
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+	    dcb="dcb"
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+        else
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+	    dcb="nodcb"
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+        fi
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+        echo "fcoe=${mac}:${dcb}"
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+    done
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+}
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+
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+# called by dracut
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 install() {
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     inst_multiple ip dcbtool fipvlan lldpad readlink lldptool fcoemon fcoeadm
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     inst_libdir_file 'libhbalinux.so*'
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@@ -33,6 +74,10 @@ install() {
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     mkdir -m 0755 -p "$initdir/var/lib/lldpad"
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     mkdir -m 0755 -p "$initdir/etc/fcoe"
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+    if [[ $hostonly_cmdline == "yes" ]] ; then
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+        local _fcoeconf=$(cmdline)
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+        [[ $_fcoeconf ]] && printf "%s\n" "$_fcoeconf" >> "${initdir}/etc/cmdline.d/95fcoe.conf"
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+    fi
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     inst "$moddir/fcoe-up.sh" "/sbin/fcoe-up"
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     inst "$moddir/fcoe-edd.sh" "/sbin/fcoe-edd"
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     inst "$moddir/fcoe-genrules.sh" "/sbin/fcoe-genrules.sh"